In a vast and
mysterious universe, a small but powerful force has existed for
millennia. Protectors of peace and justice, they are called the
Green Lantern Corps. Cosmic warriors sworn to keep intergalactic
order, each Green Lantern wears a ring that grants superpowers.

When a new enemy threatens to destroy the balance of power in the
Universe, the fate of the Green Lanterns and of the Earth lie within
the hands of the Corps' newest recruit – the first human ever
selected: gifted but cocky test pilot Hal Jordan (Ryan Reynolds).
With determination and willpower, he possesses one thing no member
of the Corps has ever had: humanity.

Jordan must quickly master his new powers and find the courage to
overcome his fears to defeat the enemy and become the greatest Green
Lantern of all.